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MERCURY

A day on the planet Mercury is twice as long as its year. Mercury rotates very slowly but revolves around the sun in slightly less than eighty-eight days.
Saturn has 62 moons. Titan is the largest and it is the only Saturn moon with an atmosphere. Titan is also larger than the planet Mercury.
Jupiter has the biggest moon in the Solar System, Ganymede. It is even bigger than Mercury and Pluto.
The surface of Mercury is heavily cratered, looking much like our moon.
The sun's rays are about seven times as strong on Mercury as they are on the Earth.
The sun appears 2 and a half times larger in Mercury's sky compared to the Earth's.
Mercury rotates slowly on its axis. It completes one rotation every 59 Earth days.
Mercury is the most iron rich planet in the Solar System with an iron core like Earth.
Mercury has virtually no atmosphere. It however has small traces of an atmosphere which consists minute quantities of Hydrogen, Oxygen, Sodium, Potassium and argon.
It takes less than 88 Earth days for Mercury to orbit around the sun.